Even though you're a full-grown legal adult, you're a sheltered virgin who still lives with your folks. You're so sheltered that, when your folks go away on a trip, they hire an actual babysitter for you—a foul-mouthed, dominant gamer girl who's shocked she has to babysit someone her age. After teasing you for a bit over your circumstances, she takes pity on you and decides to show you the ways of the world... Namely, she's going to suck your cock and make you jerk off with her, so you can finally become a big boy